Quadrate Ligament

Description

Illustration of the quadrate ligament, including when supinated or pronated

The quadrate ligament is marked

Other Names

• Quadrate ligament
• Ligament of Denucé
• Radioulnar Quadrate Ligament
• Quadrate Ligament of the Elbow
• Quadrate Ligament of the Radius and Ulna

History

• First described by French Anatomist Jean Paul Louis Denucé

Description

• Fibrous band attached to:
  • Inferior border of the radial notch on the ulna
  • Neck of the radius
• Strengthened by the upper border of the annular ligament

Function

• Reinforces the inferior part of the elbow joint
• Contributes to joint stability by securing proximal radius against the radial notch
• Maintains constant tension during pronation and supination movements of the forearm
• Restricts excessive supination and pronation

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Clinical Significance

• Needs to be updated

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See Also

• Elbow Pain Main
• Physical Exam Elbow
• Elbow Anatomy Main

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